Elektro
Electricity 4 : AC/DC Motors, Controls, And Maintenance
JEFF KELJIK 0btain quick and easy access to information on DC and AC motors, various types of manual, magnetic, and electronic controls, and the installation and maintenance functions of each. Updated tolhe 2008 National Electrical Code@ and featuring safety references to the most current 0SHA Safe Work policies, Electricity 4: AC/DC Motors, Controls, and Maintenance,9th Edltion provides practical, hands-on information to get the electrical system operating as well as the theory of \\\"why\\\" the system works to aid in troubleshooting. The Ninth Edition features material on Variable Frequency Drives (VFDs) and newer controls for servo and small notors. Current practices and equipment have also been added to the Maintenance section to better enable readers to troubleshoot motors and control problems. Features of this book . All material has been updated to bring the \\\"state-of-the-industry\\\" principles and practrces to new and practicing electrical workers . More control systems using programmable controls and the use of electronic controls have been added to the advancement of control systems . Current and past technologies are thoroughly examined to provide reference to older systems still in use and provide the necessarV information to transition to newer systems . Formulas and examples are explained step-by-step, and solutions are provided to reinforce processes and aid in application
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